Computer Music Product Guide 2012 - Roland

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USB 2.0 Audio Interface
for Microsoft ® Windows ® 7/
Windows Vista ® /Windows ® XP SP2
USB2.0
WDM
Windows ®
Core Audio
Mac OS X
for Mac OS X
Audio
4 in/4 out
Audio
24-bit/192 kHz
MIDI
1 in/1 out
4-in/4-out USB 2.0 audio interface
with versatile features
Two powerful VS PREAMPs built in
The 4-in/4-out QUAD-CAPTURE features two analog ins/outs and two digital ins/outs (stereo).
It supports up to 24-bit/192 kHz* recording and provides two analog channels equipped with
VS PREAMPs — high-quality class-A mic preamps that deliver the same clear and highquality
sound that the flagship OCTA-CAPTURE is revered for.
* Digital input and output not supported at 192 kHz.
Streamlined analog circuitry undesirable
unnecessary variations in sound
Just as in QUAD-CAPTURE’s high-end sibling OCTA-CAPTURE, the use of
analog circuitry has been streamlined as much as possible for parameter actions
and meter displays. Its analog circuitry has been kept simple to reduce undesirable
variations in sound by keeping controls in the digital realm via built-in DSP.
Additionally, its analog and digital circuits have been segregated at the board level
to reduce noise and crosstalk that result from circuit interference.
A/D
AMP
Audio signals
■Typical designs
Analog
SENS
Digital control
AMP
Audio signals
Digital
SENS
AUTO-SENS automatically sets the input level for you
With AUTO-SENS, you can achieve perfect input levels quickly. Simply by playing
for a short amount of time, QUAD-CAPTURE analyzes the variations in volume
and calculates the optimum value, setting the optimum input levels for the source.
This function is tremendously useful when recording under tight time constraints.
A/D
■QUAD-CAPTURE
LED level meter for excellent visibility
The SENS knobs, which are used to set input levels, are
surrounded by a 13-segment LED level meter that’s easy to
view even from a distance. The meters are controlled by the
built-in DSP to achieve level displays that are more precise
than in existing products. The peak-hold function helps you
set optimum input levels.
High-performance DSP provides excellent quality and
powerful performance tools
Low-noise, wide-ranging power supply enables
high-quality sound and stability
Equipped with a low-noise, wide-ranging power supply, QUAD-CAPTURE
eliminates instabilities in the power supply, the bane of USB bus power. All circuits
are driven by stable voltage so QUAD-CAPTURE can deliver excellent performance
even in a mobile environment. Its power efficiency has been improved dramatically
over the previous generation, and the supply capacity to each of the circuits has
also been increased. With balanced analog inputs and outputs with supporting up
to +4 dBu, QUAD-CAPTURE provides pro specs at an affordable price.
Schematic of QUAD-CAPTURE’s low-noise/wide-range power supply
PC
USB
bus
power
AUDIO
INTERFACE
Analog/
digital
circuit
power
■Typical designs
PC
USB
bus
power
Digital
circuit
power
DC/DC converter
QUAD-CAPTURE
Analog
circuit
power
Power supplied from the
USB bus (+5 V) is rectified
in QUAD-CAPTURE’s builtin
DC/DC converter, which
supplies optimum power to
each circuit and stabilizes
their performance.
●Features VS STREAMING for super low latency ●Ground-lift
switches prevent ground looping when used in live settings ●+10
dBu headphone output level for dynamic monitoring ●Supports USB bus power, great for
mobile recording ●1-in/1-out MIDI interface built in ●Supports ASIO 2.0/WDM (Windows) and
Core Audio (Mac) ●Bundled with the Cakewalk SONAR LE DAW software (Windows only)
Rear Panel
■QUAD-CAPTURE
QUAD-CAPTURE houses a high-performance 40-
bit DSP engine that enables high-quality mixing and
dynamics processing without tasking your PC. The
mixer provides a direct-monitor function for monitoring
at ultra-low latencies. All parameters can be operated
via computer with a special control-panel app.
■Control Panel
●Dimensions 184.6 (W) x 133.9 (D) x 44.3 (H) mm; 7-5/16 (W) x 5-5/16 (D) x 1-3/4 (H) inches
●Weight 0.57 kg; 1 lbs 4 oz
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